78 Ohmite Mfg. Co. 1600 Golf Rd., Rolling Meadows, IL 60008 • 1-866-9-OHMITE • Int’l 1-847-258-0300 • Fax 1-847-574-7522 • www.ohmite.com • info@ohmite.com
Ohmite Mfg. Co. 1-866-9-OHMITE • Int’l 1-847-258-0300 • Fax 1-847-574-7522 • www.ohmite.com • info@ohmite.com 79
STANDARD PART NUMBERS FOR POTENTIOMETERS
Style CU, CA,
CB, CCU, CMU Style CLU
Style AS Style ASM
Type AB
Type AS
0.625"
15.9mm
(max.)
2"/
50.8mm
(CU, CA,
CB, CCU)
0.875"/
22.2 mm
(CMU)
1.266"
32.1mm
(max.)
(CCU)
0.375-32 thread,
round shaft,
0.25"/
6.35mm
panel (max.)
0.25"
6.35 mm
0.125"
3.18mm
1.16"
29.4mm
0.625"
15.88mm
lock nut,
slotted bushing,
locking shaft,
0.125"/
3.18mm
panel (max.)
0.5"
12.7mm
0.25-32 bushing,
locking type,
mounting nut &
lock nut
0.25-32 bushing,
standard type
0.703"
17.9mm
(max.)
0.625"
±.016
15.9mm
0.234"
6.0mm
(max.)
0.5"
12.7mm
0.469"
11.9mm
(max.)
0.5"
12.7mm
(max.)
0.125"
3.18mm
0.875"
±.016
22.2mm
0.25"
6.4mm
Potentiometers
Molded composition
Ohmic Behind panel Diameter Voltage
Model Watts range (In./mm) (In./mm) Rotation (RMS)
AS 0.5 50-5M 0.703/17.9 0.50/12.7 295° ±5° 350
ASM 0.5 50-5M 0.703/17.9 0.50/12.7 295° ±5° 350
CA 2.0 50-5M 0.625/15.9 1.16/29.4 312° ±3° 500
CB 2.0 50-5M 0.625/15.9 1.16/29.4 312° ±3° 500
CU 2.0 50-5M 0.625/15.9 1.16/29.4 312° ±3° 500
CCU 2.0 50-5M 1.266/32.1 1.16/29.4 312° ±3° 500
CLU 2.0 50-5M 0.625/15.9 1.16/29.4 312° ±3° 500
CMU 2.0 50-5M 0.625/15.9 1.16/29.4 312° ±3° 500
= Standard values; check availability
* add “-E” for RoHS-compliant lead-free zinc-nickel plated product
50 –––500A –––5001
100 –––101A –––1011 AS3601E ASM6661E
150 –––151A –––1511
250 –––251A –––2511 AS3602E ASM6662E
350 –––351A –––3511
500 –––501A –––5011 AS3603E ASM6663E
750 –––751A –––7511
1,000 –––102A –––1021 AS3604E ASM6664E
1,500 –––152A –––1521
2,500 –––252A –––2521 AS3605E ASM6665E
3,500 –––352A –––3521
5,000 –––502A –––5021 AS3606E ASM6666E
7,500 –––752A –––7521
10,000 –––103A –––1031 AS3607E ASM6667E
15,000 –––153A –––1531
25,000 –––253A –––2531 AS3608E ASM6668E
35,000 –––353A –––3531
50,000 –––503A –––5031 AS3609E ASM6669E
75,000 –––753A –––7531
100,000 –––104A –––1041 AS3610E ASM6670E
150,000 –––154A –––1541
250,000 –––254A –––2541 AS3611E ASM6671E
350,000 –––354A –––3541
500,000 –––504A –––5041 AS3612E ASM6672E
750,000 –––754B –––7542
1,000,000 –––105B –––1052 AS3613E ASM6673E
1,500,000 –––155B –––1552
2,000,000 –––205B –––2052 AS3684E ASM6674E
2,500,000 –––255B –––2552 AS3614E ASM6675E
3,500,000 –––355B –––3552
5,000,000 –––505B –––5052 AS3615E ASM6676E
Ohmic value
Part No.
Prefix
Suffix
CMU––– RV4NAYSD––– Linear
MIL Designation
Prefix
Suffix
CU––– RV4NAYSJ––– Linear
CA––– RV4NAYSJ––– CW log
CB––– RV4NAYSJ––– CCW log
CLU––– RV4LAYSA––– Linear
CCU––– 2RV7NYSJ––– Linear
Dual*
RV6LAYSA––– Linear
RV6NAYSD––– Linear
Ohmic value
Part No.
Prefix
Suffix
CMU––– RV4NAYSD––– Linear
MIL Designation
Prefix
Suffix
CU––– RV4NAYSJ––– Linear
CA––– RV4NAYSJ––– CW log
CB––– RV4NAYSJ––– CCW log
CLU––– RV4LAYSA––– Linear
CCU––– 2RV7NYSJ––– Linear
Dual*
RV6LAYSA––– Linear
RV6NAYSD––– Linear
Ohmite molded composition
potentiometers are available in
various models for applications
in military devices, industrial
equipment and in equipment
requiring a convenient resis-
tance control device.
FEATURES
• Low noise, smooth operation
• In accordance with “Mil” RV4N,
RV4L, RV6L, RV6N, 2RV7N
types
• RoHS compliant; non-RoHS ver-
sion unavailable.
SPECIFICATIONS
Electrical
Derating: linear from 100% at
+70°C to 0% at +120°C
Operating temp. range: -55°C to
120°C
Material
Construction: Elements molded
into a single, integral structure.
Metal cover protects and shields
the internal parts.
Sealing: synthetic resin containing
non-mercurial fungicide
Since all rheostats/potentiometers
are electro-mechanical devices,
they are subject to mechanical
wear and, therefore, have a finite
life.
0.5 –––R50 10.0 12.3 14.1 17.3
1 –––1R0 3.53 5.00 7.07 8.66 10 12.3 15.0 17.32 22.3 31.6
1.5 –––1R5 18.2 25.8
2 –––2R0 2.50 3.54 5.00 6.12 7.07 8.65 10.6 12.24 15.8 22.4
2.5 –––2R5 2.24 14.1 20.0
3 –––3R0 2.04 2.88 5.00 5.75 7.07 8.66 10.00 12.9 18.3
4 –––4R0 3.53 7.50 8.66 11.2 15.8
5 –––5R0 1.58 3.88 4.47 5.48 6.71 7.75 10.0 14.1
6 –––6R0 1.44 2.04 2.88
7.5 –––7R5 3.16 3.65 4.47 5.49 6.32
8 –––8R0 1.25 1.77 2.50 7.90 11.2
10 –––10R 0.86 1.12 1.58 2.74 3.16 3.88 4.74 5.48 10.0
12 –––12R 2.04
12.5 –––12R5 6.30 8.95
15 –––15R 0.71 0.91 1.29 3.163 3.87 4.47
16 –––16R 1.76 2.17 2.50 5.60 7.90
22 –––22R 1.50
25 –––25R 0.55 0.71 1.00 1.73 2.0 2.450 3.00 3.46 4.47 6.33
35 –––35R 0.46 0.60 0.845 1.19 2.070
40 –––40R 3.54
50 –––50R 0.39 0.50 0.707 1.00 1.23 1.41 1.735 2.12 2.45 3.16 4.47
75 –––75R 0.32 0.40 0.575 1.00 1.15 1.415 1.73 2.00 3.65
80 –––80R 0.790 2.52
100 –––100 0.27 0.36 0.500 0.866 1.00 1.225 1.50 1.73 3.16
125 –––125 0.32 0.445 0.630 2.00
150 –––150 0.22 0.29 0.575 1.000 1.22 1.41
160 –––160
175 –––175 0.27 0.375 1.69 2.39
200 –––200 0.19 0.25 0.612 0.707 0.865 1.06 1.22
225 –––225 0.470 2.11
250 –––250 0.17 0.22 0.316 0.775 1.41
300 –––300 0.408 0.500 0.575 0.866 1.00 1.83
325 –––325 1.24
350 –––350 0.15 0.19 0.267 0.655
400 –––400 0.433 0.500 0.750 0.866 1.48
500 –––500 0.12 0.16 0.222 0.316 0.388 0.447 0.548 1.00 1.41
600 –––600
700 –––700 0.567 0.655
750 –––750 0.10 0.13 0.182 0.316 0.365 0.447 0.817 1.15
800 –––800 0.250
900 –––900 0.500 0.578
1000 –––1K0 0.086 0.10 0.155 0.224 0.274 0.316 0.707 1.00
1200 –––1K2 0.433 0.500
1250 –––1K25 0.346
1500 –––1K5 0.071 0.090 0.129 0.224 0.258 0.387 0.447 0.577 0.816
1600 –––1K6 0.176
1750 –––1K75 0.358 0.414
1800 –––1K8 0.288
2000 –––2K0 0.194 0.224 0.336 0.387 0.500
2250 –––2K25 0.259
2500 –––2K5 0.055 0.070 0.100 0.141 0.173 0.200 0.300 0.346 0.447 0.633
3000 –––3K0 0.224
3500 –––3K5 0.046 0.060 0.084 0.119
4500 –––4K5 0.182
5000 –––5K0 0.039 0.050 0.070 0.100 0.123 0.141
7500 –––7K5 0.041 0.058 0.100 0.115 0.141
8000 –––8K0 0.079
10000 –––10K 0.035 0.050 0.070 0.087 0.100 0.122
12500 –––12K5 0.031
15000 –––15K 0.029 0.041 0.058
20000 –––20K 0.035 0.050
25000 –––25K 0.032 0.045
30000 –––30K 0.041
40000 –––40K 0.035
50000 –––50K 0.032 Check product availability at www.ohmite.com
